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Gibco™ Human IL-21 Recombinant Protein, PeproTech®

Recombinant Protein

Brand:  Gibco™ 200-21-10UG

142.10 EUR valid until 2025-03-16
Use promo code "24070" to get your promotional price.


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Product Code. 17820633

  • 203.00 EUR / 10µg

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To receive the discount customers must purchase three of the same product at list price in a single order to receive 33.33% discount. There is no limit to the multiples of 3 that customers can buy. Use promo code ”24111” to get your promotional price

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Description

Description

Recombinant Human IL-21 is a 15.4 kDa protein consisting of 132 amino acid residues. This product is shipped at ambient temperature. For storage, handling and reconstitution information, please see the lot-specific Certificate of Analysis

IL-21 is a 17 kDa immunomodulatory cytokine produced mainly by Natural Killer Cells (NKT), T helper (Th) 17 and T follicular helper (TFH) cells. In TFH cells, IL-21 expression leads to autocrine signaling through the IL-21 receptor (IL-21R) and STAT3, which leads to additional transcriptional activation by Bcl6. As with IFN gamma for Th1 and IL-4 for Th2 cells, IL-21 is critical for TFH cell development and effector function. IL-21 plays a role in T cell-dependent B cell differentiation into plasma cells and memory cells, stimulation of IgG production and induction of apoptotic signaling in naive B cells. In Th17 cells, IL-21 expression and autocrine feedback through STAT3, IRF4 and ROR gamma t lead to upregulation of the IL-23R, thereby preparing Th17 cells for maturation and maintenance by the inflammatory cytokine IL-23. While upregulating IRF4 and ROR gamma t, IL-21 also mediates the downregulation of Foxp3. IL-21 deficient mice are protected from developing colitis upon chemical treatment by their inability to upregulate Th17-associated molecules. In comparison, elevated levels of IL-21 are present in chemically-induced colitis mouse models.
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